I'm a learning mobile development using Titanium Mobile framework.
I am facing a problem related to application of javascript style sheet.
When I name my jss file same as the js file, to which the style is to be applied, it works fine. But if I name it something else, it don't work. Can anybody tell me a solution. Following is my code sample.
// app.js
var win = Titanium.UI.createWindow({ backgroundColor : '#fff' });
win.add( Ti.UI.createButton({ title : 'Button A' }) );
win.open();
// app.jss, works fine
button { backgroundImage: 'grdadient_img.png'; }
// button_style.jss, don't work
button { backgroundImage: 'grdadient_img.png'; }
I never had much success using more than one JSS file. And if you follow Nandu's links you'll see that it's not really documented very well, likely to be removed from Titanium at some point. I expect that Titanium's Alloy will kill off JSS too.
If you don't want to use JSS (or Alloy yet), there is a neat way to centralise your styles using commonJS modules and optionally underscore.js e.g.
theme.js
var theme = {
tableLabel : {
color : '#3285C7',
backgroundColor : 'transparent',
inactiveColor : '#AAAAAA'
}
}
module.exports = theme;
to use
var theme = require('ui/common/Theme');
...
var myLabel = Ti.UI.createLabel(_.extend({}, theme.tableLabel, {
top : 5,
height : Ti.UI.SIZE,
width : Ti.UI.FILL,
text : "Hello world",
}));
I use _extend to take the settings from the theme and add instance specific settings like size, position etc. Don't forget the first empty object literal in the call to `_.extend()
See http://underscorejs.org/#extend
Ammar, please refer the following links. Hope it will help you
1.How to use jss correctly
2.How Does .jss feature really works in Titanium mobile SDK
Related
I'm really into Google's Polymer and I love GSAP - and so far I've been using the two in conjunction without a hitch. Unfortunately I have now hit a problem - how do I use GSAP (TweenMax to be specific) with custom css variables?
For example:
To change someCssProperty of someElement I would
TweenMax.to(someElement, 1, someCssProperty: "value");
but the someCssProperty becomes an issue when I'm trying to animate a css variable, which take on the form --some-custom-css-variable .
I have tried to use
TweenMax.to(someElement, 1, --some-custom-css-Property: "value");
(obviously gives me errors) and I also tried to use TweenMax.to(someElement, 1, "--some-custom-css-Property": "value");
(quotes around the some-custom-Css-property) - however this results in
no change/animation and an invalid tween value error message on the developer console.
So the question is: how would I go about animating custom css variables with TweenMax (GSAP)?
Thanks for any help :)
EDIT:
I have tried using classes through
TweenMax.to("SomeElement", 5, {className:"class2"});
But this changed the element style as if I had declared it in css with a
SomeElement:hover {}
style (as in it does not animate, just changes immediately)
For now, you're going to have to manually update the variable using a generic object.
var docElement = document.documentElement;
var tl = new TimelineMax({ repeat: -1, yoyo: true, onUpdate: updateRoot });
var cs = getComputedStyle(docElement, null);
var blur = {
value: cs.getPropertyValue("--blur")
};
tl.to(blur, 2, { value: "25px" });
function updateRoot() {
docElement.style.setProperty("--blur", blur.value);
}
:root {
--blur: 0px;
}
img {
-webkit-filter: blur(var(--blur));
filter: blur(var(--blur));
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/1.18.4/TweenMax.min.js"></script>
<img src="http://lorempixel.com/400/400/" />
I have different albums, the contents of which I want to show in lightgallery.
My initial call goes like :
$('.dlCms_c_Carousel').lightGallery({
dynamic : true ,
dynamicEl : dlThis.LGDynEl ,
thumbnail : true ,
mode : 'lg-fade' ,
});
This works perfect, but then, when opening another album, I want the one or the other way to refresh such that the new content of dynamicEl is shown.
Is there a way to do it ?
I was trying a
$('.dlCms_c_Carousel').data("lightGallery").destroy(true)
before, but that messed up. I.e. there seemed to be some functionality, but it looked like the lightbox lost some styling and wasn't opaque any more.
Any hints ?
I'm using Waypoint.js for infinite scrolling with lightgallery.
The solution that I found for dynamic refresh was:
var gallery = $(".infinite-container").lightGallery({
selector: '.item'
});
var infinite = new Waypoint.Infinite({
element: document.querySelector('.infinite-container'),
onAfterPageLoad: () => {
gallery.data('lightGallery').destroy(true);
gallery = $(".infinite-container").lightGallery({
selector: '.item'
});
}
});
From my experience, the object returned from the lightgallery initialization has to be used on the destroy.
Hope it helps.
I am only a month old with extjs and still experimenting. My question is: I have a grid panel and within it the 'tools' config options. I am using this to enable/disable a Ext.grid.feature.Grouping variable. The 2 handler functions have the logic to disable/enable the 2 views by clicking on the 2 'cross' buttons that appear on the right side of the header. The logic is fine. However, I would like to display my set of custom images in place of the 'cross' buttons. Can this be done? If yes, how? Do I need to make some changes in the css code for that?
I have looked into the documentation and also done a good search but nothing seems to answer my question.
Specify a custom type config on your tools:
Ext.create('Ext.grid.Panel', {
...
tools: [
{
type: 'enable-grouping',
handler: function() {
...
}
},
{
type: 'disable-grouping',
handler: function() {
...
}
}
]
});
Then define the following classes in a stylesheet to style your new tools:
.x-tool-enable-grouping {
background-image: url('path/to/tool/image/enable-grouping.png');
}
.x-tool-disable-grouping {
background-image: url('path/to/tool/image/disable-grouping.png');
}
The size of a tool image should be 15 x 15 px
I am designing an app in sencha touch2. I have a panel object in my JS file. I need to dynamically set the text/html for this component. The store for this component is defined at the application level. Following is the thing I worked out:
Ext.define('class_name',{
....
config : {
pnlObj : null,
...
}
initialize : function() {
this.config.pnlObj = Ext.create('Ext.Panel');
var store = Ext.data.Storemanager.lookup('some_store');
store.on('load',this.loadStore,this);
this.setItems([{
//some items here
{
flex : 2,
// id : 'somepnl',
config : this.config.pnlObj
}
}]);
},
loadStore : function(store, rec) {
var text = rec.get('text');
var panel = this.config.pnlObj;
// var panel = Ext.getCmp('somepanl');
panel.setHtml(text);
}
});
When I inspect the inspect the element using Firebug console, I can find the panel added there. But I am not able to set the html dynamically. no html text is set there. I tried adding it using panel.add() & panel.setItems() method which doesn't work. If I give an id to that panel(somepanel here) and try to access it using Ext.getCmp('smpanel') then in that case it works fine. I have found that using Ext.getCmp() is not a good practice and want to avoid it as it might somewhere break my code in the future.
I guess the way I am instantiating the panel object is creating some issue. Can someone suggest the best way of doing it?
The recommended way to manipulate your components in Sencha Touch 2 is using controller, through refs and control configs. For example, your panel has a config like this: xtype:'myPanel', then in your controller:
refs: {
myPanel: 'myPanel'
}
control:{
myPanel: {
on_an_event: 'set_html_for_my_panel'
}
}
Lastly, define your function:
set_html_for_my_panel: function()
{
this.getMyPanel().setHtml('my_updated_html');
}
P/S: Behind the scene, Sencha Touch 2 uses Ext.ComponentQuery for refs in controllers
Within Sencha Touch, is it possible to define a default UI , like "light" or "dark", that applies to all components (unless overwritten explicitly)?
The aim is to avoid having to declare ui: "dark", or any custom UI that is made, for every element.
Cheers!
You can try this:
Ext.apply(Ext.Component.prototype, {
getUi: function() {
var defaultUi = 'light';
// value of [this.config.ui] is ignored here
// we can use something like forcedUi
return (this.forcedUi) ? this.forcedUi : defaultUi;
}
})
The disadvantage of this code is that we need to specify another variable for applying ui different from 'light' (because variable 'ui' via getUi() will always return 'light'):
...
items: [{
xtype: 'button',
forcedUi: 'dark'
}]
...
I am stuck on Touch 1.1 so sunsay's solution didn't work for me, but this did:
Ext.CustomToolbar = Ext.extend(Ext.Toolbar,
{
ui:'app'
});
Ext.reg('toolbar', Ext.CustomToolbar);
So, it's still component-by-component-type, but not component-by-component-instance. And since you can overwrite the "reg", no need for custom x-types all over the place, either.
I assume that you know about sencha touch styles and themes. Otherwise you can download a pdf file from this link which clearly describes about how to do it...
http://f.cl.ly/items/d9df79f57b67e6e876c6/SenchaTouchThemes.pdf
In it they are mentioning about scss file where you can specify the base-color, ie
$base-color: #4bb8f0 ;
$base-gradient: 'glossy';
Then run it ... you can see the toolbars and buttons created with the color and gradient you have mentioned.